JPS645661Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a handle transfer/fixing device for an agricultural management machine.

That is, a support plate is provided at the base of the handle frame that is connected to the handle rod, and the upper chrysanthemum seat provided on this support plate and the lower chrysanthemum seat provided on the upper surface of the fixed frame at the top of the machine can be engaged freely to form the handle. In an agricultural management machine configured to allow transfer, it is possible to securely and firmly fix the handle by properly engaging the upper and lower chrysanthemum seats with both cam bodies by operating the lever, and also to easily make the engagement. The handle can be easily changed and rotated by releasing the handle, and the handle can be firmly fixed in any desired direction, not just forward or backward, making it easy to operate and conveniently implemented with a simple structure. We will provide it to you as soon as possible.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the management machine. Wheels 12 are mounted on both sides of the lower part of the transmission case 11, and an engine E is mounted on the front frame 13 extending to the front of the transmission case 11. A hitch 14 for connecting the working machine is connected to the rear of the transmission case 11, and a handle extends diagonally upward from above the fixed frame B, which is connected to the upper part of the transmission case 11, which is the upper part of the machine. A handle bar 1 is connected to the upper part of the frame A, and the structure is similar to the conventional structure.

An annular chrysanthemum seat 3 is formed on the upper surface of the fixed frame B, and an integral support cylinder 5 is provided to protrude vertically upward from the center of the chrysanthemum seat 3.

An annular chrysanthemum seat 2 that can be engaged with the chrysanthemum seat 3 is formed on the lower surface of a support plate 15 that is integrally stretched on the lower surface of the base a of the handle frame A, and an annular chrysanthemum seat 2 that can be engaged with the chrysanthemum seat 3 is connected from the center of the chrysanthemum seat 2 to the upper part of the inside of the base a. A cylindrical body 16 that can be rotatably fitted to the support cylinder 5 is extended and fixed thereto,
A contact plate 17 is joined to the lower end surface of the support shaft 4, which is rotatably fitted into the cylinder 16 and the support cylinder 5, and is fixed with a bolt 18.
is installed so that it cannot move up and down with respect to the support tube 5,
A compression spring type elastic device 10 is interposed in the upper part of the cylinder 16 above the upper end surface of the support shaft 4 to press the handle frame base a upward against the support shaft 4.

On both sides of the cylindrical body 16, there are long grooves 19 in the vertical direction,
19, and the horizontal rotation shaft 7 extending inside the long grooves 19, 19 is fitted into the upper part of the support shaft 4 so as to be orthogonal to the support shaft 4, and is freely rotatable. Eccentric cam bodies 9, 9 of the same shape are fitted and fixed to the portions of the rotation shaft 7 on both sides of the cylinder 16, and the rotation shafts 9 are fitted into long grooves 20 in the vertical direction formed on the side surface of the handle frame base a. It extends outward through one end of the shaft 7, and the boss portion 21 of the lever 6 is fitted into the one end of the pivot shaft 7, and a locking pin 22 is inserted and fixed thereto.

Further, a leaf spring 8 that contacts both cam bodies 9, 9 is installed on the support plate 15, and the leaf spring 8 is formed into a bifurcated shape so as to straddle the cylinder body 16, and the front part has an upward direction. Both nuts 23, 2 are fixed to the support plate 15, forming a front upward step portion 8a bent at
The front upward step portion 8a is placed on the heads of the bolts 24, 24 which are screwed into the bolts 24, 24, respectively, so that the leaf spring 8 is inclined on the support plate 15.
The plate spring 8 is installed and configured so that the degree of inclination of the leaf spring 8 can be changed by adjusting the vertical movement of the leaf spring 4.

Therefore, as shown in FIGS. 2 to 4, if the lever 6 is rotated so that the acting portions of both cam bodies 9, 9 face downward, the leaf springs will be activated by both cam bodies 9, 9. By pressing the support plate 15 downward at the same time as pressing the chrysanthemum seat 8 downward, the chrysanthemum seat 2 is tightly engaged with the chrysanthemum seat 3, and the handle frame A can be firmly fixed.

To move the handlebar 1 forward as shown by the imaginary line in FIG. 1, or to turn it laterally, rotate the lever 6 as shown by arrow A, as shown in FIGS. 6 and 7. As shown in FIG. 2, both cam bodies 9, 9 rotate so that the acting portion faces upward, and the downward pressure on the leaf spring 8 and the support plate 15 is released, and at the same time, the elastic force of the elastic machine 10 causes the handle frame to move upward. The base a floats upward and the chrysanthemum seat 2 is separated above the chrysanthemum seat 3, and in this state, when the handle frame A is rotated,
The support shaft 4 and the cylinder 16 will rotate relative to the support cylinder 5, and when they have been rotated to the desired position, if the lever 6 is reversely operated as described above,
This means that the handle can be locked by firmly engaging the chrysanthemum seats 2 and 3 again.

In this way, the present invention provides a support plate 15 at the base a of the handle frame A connected to the handle rod 1, and a support plate 15 provided on the upper chrysanthemum seat 2 provided on the support plate 15 and on the upper surface of the fixed frame B on the upper part of the machine. In an agricultural management machine configured so that the lower chrysanthemum seat 3 can be freely engaged with the handle so that the handle can be changed, a support tube 5 that is fixed and erected at the center of the chrysanthemum seat 3 has a support shaft 4 attached thereto. The support shaft 4 is fitted so that it can only rotate around the axis, and the cylinder 16 fixed to the base a above the center of the chrysanthemum seat 2 is fitted into the support cylinder 5 and rotated up and down. A rotation shaft 7, which is provided so as to be movable and rotatable, and can be rotated by a lever 6 on the outside of the handle frame A, is rotatably inserted into the upper part of the support shaft 4 in the orthogonal direction, and the cylindrical body Both cam bodies 9, 9 are fitted and fixed to the parts of the rotation shaft 7 on both sides of the cam body 16, and a long leaf spring 8 that can come into contact with both the cam bodies 9, 9 is mounted on the support plate 15. A vertically adjustable bolt 24 is provided on the support plate 15 so that one end of the leaf spring 8 is placed on the bolt 24 so that the leaf spring 8 is inclined upwardly on the support plate 15. Since the structure is mounted on the handle frame base a on both sides of the support cylinder 5, the two cam bodies 9, 9 can be connected to the handle frame base a on both sides of the support tube 5 via the leaf spring 8 by simply rotating the lever 6.
The handle can be firmly and firmly locked while the upper and lower chrysanthemum seats 2 and 3 are well engaged over the entire part, and the lever 6 can be simply operated in the opposite direction. So chrysanthemum 2,
3 can be released properly and the handle can be rotated in the desired direction. Also, if the leaf spring 8 becomes worn or loses its elasticity due to long-term use, the bolt The tightening force of the chrysanthemum seats 2 and 3 can be optimally adjusted while adjusting the inclination of the leaf spring 8 by moving the lever 24 upward. have

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the management machine, FIG. 2 is a side sectional view of the main part, FIG. 3 is a sectional view of FIG. 2, and FIG. Side sectional view, fifth
The figure shows a sectional view taken along the - line in FIG. 3, FIG. 6 shows an explanatory view of the operation in FIG. 2, and FIG. 7 shows a partial perspective view in the state shown in FIG. 6. 1...Handle rod, A...Handle frame,
a...Base, B...Fixed frame, 2, 3...Chrysanthemum seat, 4
...Spindle, 5...Support tube, 6...Lever, 7...
Rotating shaft, 8... leaf spring, 9... cam body, 15...
Support plate, 16...cylindrical body, 24...bolt.

Claims (1)

[Scope of utility model registration request] A support plate 15 is provided at the base a of the handle frame A connected to the handle rod 1, and an upper chrysanthemum seat 2 provided on this support plate 15 and a lower chrysanthemum seat 3 provided on the upper surface of the fixed frame B on the upper part of the machine body. In an agricultural management machine configured so that the handles can be freely engaged with each other and the handle can be changed, a support tube 5 is fixed and erected at the center of the chrysanthemum seat 3. A cylindrical body 1 is fitted so as to be able to rotate only around the center, and is fixed to the base a above the center of the chrysanthemum seat 2.
6 is fitted into the support tube 5 so as to be vertically movable and rotatable, and a rotation shaft 7 that can be rotated by a lever 6 on the outside of the handle frame A is attached to the upper part of the support shaft 4 in a direction perpendicular to the support shaft 4. Both cam bodies 9, 9 are fitted and fixed to the parts of the rotation shaft 7 which are on both sides of the cylinder body 16, and long cam bodies 9, 9 can come into contact with the two cam bodies 9, 9. The leaf spring 8 is attached to the support plate 1.
5, and the support plate 15 is provided with a vertically adjustable bolt 24, one end of the leaf spring 8 is placed on the bolt 24, and the leaf spring 8 is placed above the support plate 15. A handle transferring and fixing device characterized in that it is mounted and configured to have an inclined shape.